“Glad to welcome home Owen Lee Shook. #5daysold #alreadycrackingjokes #1800gotaboy,” Appleby, 37, shared on Instagram alongside a snap of the new family of four.

The screen vet and her restaurateur fiancé are already proud parents to 2-year-old Natalie, whom Appleby said was elated to step into her new role as a big sister.

“Our daughter, Natalie, is really excited,” she told E! News earlier this year. “We’ve been reading a lot of books to try to explain what’s going on and I’m just hitting that nesting phase where I’m like ‘OK, we need to make room, let’s clean out the drawers, the playroom.’ It’s just really exciting. It’s a really exciting time for us.”